31 research outputs found
Paternal age and perinatal outcomes: an observational study
No full textObjectives: The study's primary aim was to examine the relationship between paternal age and perinatal outcomes. Methods: This study used data from two hospital birth registries to examine the association between paternal age and adverse perinatal outcomes. The sample included all live singleton births between 2010 and 2022. The primary exposure was paternal age, and the following perinatal outcomes were considered: mode of conception, mode of delivery, pregnancy complications, and neonatal outcomes. Results: A total of 15,232 pregnant women were considered. Maternal and paternal ages were 31.9 ± 5.3 and 36.5 ± 6.5 years, respectively. Independent of maternal, paternal age was associated with lower odds of spontaneous conceptions (OR 0.930, 95 % CI 0.968/0.993; p=0.003) and higher odds of intracytoplasmatic sperm injection (OR 1.054, 95 % CI 1.045/1.062; p=0.0001), respectively. In contrast to maternal age, paternal age decreased the odds of any (OR 0.922, 95 % CI 0.985/0.999; p=0.032) and urgent/emergent (OR 0.984, 95 % CI 0.975/0.993; p=0.0001) cesarean delivery. Paternal age did not affect the gestation length, placental or neonatal weight, blood loss during delivery, and neonatal 5th-minute Apgar score. Conclusions: Paternal age is associated with perinatal outcomes. These findings suggest that advanced paternal age may have implications for reproductive counseling and prenatal care
Gordius villoti (Nematomorpha) life cycle in relation with caddis fly larvae
No full textThe relationships between Gordius villoti Rosa and Allogamus auri-collis Pictet larvae are described. The horsehair worms and host life cycles have been investigated in laboratory and field conditions and aspects of their morphology and behaviour are discussed
Genetic variation and phylogenetic relationships in some dog breeds, Italian wolf (Canis lupus italicus) and in red fox (Vulpes vulpes) based on microsatellite DNA polymorphisms
No full textClinical Data of Neonatal Systemic Thrombosis
No full textObjective To evaluate clinical data and associated risk conditions of noncerebral systemic venous thromboembolism (VT), arterial thromboembolism (AT), and intracardiac thromboembolism (ICT) in neonates. Study design Data analysis of first systemic thromboembolism occurring in 75 live neonates (0-28 days), enrolled in the Italian Registry of Pediatric Thrombosis from neonatology centers between January 2007 and July 2013. Results Among 75 events, 41 (55%) were VT, 22 (29%) AT, and 12 (16%) ICT; males represented 65%, and 71% were preterm. In 19 (25%), thromboembolism was diagnosed on the first day of life. In this "early onset" group, prenatal-associated risk conditions (maternal/placental disease) were reported in 70% and inherited thrombophilia in 33%. Postnatal risk factors were present in 73%; infections and central vascular catheters in 56% and 54% VT, respectively, and in 67% ICT vs 27% AT (<.05). Overall mortality rate was 15% and significant thromboembolism-related sequelae were reported in 16% of discharged patients. Conclusions This report from the Registro Italiano Trombosi Infantili, although limited by representing an uncontrolled case series, can be used to develop future clinical trials on appropriate management and prevention of neonatal thrombosis, focusing on obstetrical surveillance and monitoring of critically ill neonates with vascular access. A thrombosis risk prediction rule specific for the neonatal population should be developed through prospective controlled studies. © 2016 Elsevier Inc
Phylogenetic relationships of 10 canine italian breeds (canis familiaris) and wild canids (vulpes vulpes, canis lupus italicus) by microsatellite and mithocondrial polymorphisms
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Effects of fibre orientation on the behaviour of RC beams in vibrated and self-compacting concrete
No full textStructural design of fibre-reinforced members should take into consideration fibre orientation since the residual properties of the material can be different as a function of the cracking plane position and inclination. Designers must be aware of the possible negative influence of fibre orientation and they may take advantages from its positive effect. Some international standards (i.e., fib Model Code 2010 and German standard DafStb) define a factor that should take into account the orientation effects. In this context, the present paper presents the results of an experimental program aimed at evaluating steel fibre orientation in RC beams. Three beams (0.15 m x 0.70 m x 4.10 m) were cast at Magnetti Building (Carvico, Italy) factory following the most common casting process adopted in practice by using vibrated and self-compacting concrete
An investigation of the association of colonic adenomatous polyps and nutritional status of retinol and carotene
No full textThe hypothesis was evaluated that lower dietary consumption of carotene or retinol or lower serum levels of beta carotene or retinol are associated with development of colonic adenomas. To evaluate this hypothesis, selected patients who were to undergo colonoscopy to determine polyps status were asked to undergo a battery of tests to assess nutritional status. These tests included a dietary and demographic questionnaire, serologic assessment of beta carotene and retinol, and a dark adaptation test.
One hundred male subjects were evaluated. Fifty-seven were found to have colonic adenomatous polyps. Cases and controls appeared to be well matched for demographic characteristics. There were no statistically significant differences for any nutritional parameter between cases and controls, but cigarette smoking was more prevalent among cases than controls (p<0.05).
Because nonsignificant negative associations with colonic adenomas were observed for some of the nutritional parameters, it is concluded that additional subjects should be studied, as planned.M.S
Highly reliable and high-yield 1300-nm InGaAlAs directly modulated ridge Fabry-Perot lasers, operating at 10-Gb/s, up to 110/spl deg/C, with constant current swing
No full textTransceivers for 300 m multimode links, based on a serial 10 Gb laser source and incorporating receiver based electronic dispersion compensation (EDC) are creating the first high volume application for 10 Gb FP (Fabry Perot). A highly reliable and high yield uncooled ridge FP laser is presented. The device shows excellent power characteristics in the 25-150/spl deg/C temperature range with very high T0 (95 K in the temperature range 0-85/spl deg/C and still 78 K at 150/spl deg/C). Outstanding dynamic performances are also shown: 6 dB of extinction ratio can be achieved up to 110/spl deg/C, by using a constant current swing of 50 mA
Influence of fibre orientation on the structural response of FRC slabs
No full textThe structural design of elements reinforced by fibres requires to take into consideration fibre orientation, since the material residu-al properties can vary as a function of element zone and cracking plane inclination. Therefore, designers have to consider the influ-ence of fibre orientation, both for its negative and positive effects. In this context, the present paper presents the results of an ex-perimental program aimed at evaluating fibre distribution and orientation in FRC slabs, as well as design implications at both mate-rial and structural level. Four elevated slabs (2.50 m x 2.50 m x 0.15m) were casted at Magnetti Building factory following the most common casting process adopted in practice (in order to be as close as possible to real situations). Two slabs were cut either orthog-onal or parallel to casting direction in order to obtain small beams 15x15x55 cm, while the remaining two slabs were first subjected to flexural tests and then numerically studied. Both vibrated and self-compacting concrete reinforced by 50 kg/m3 of steel fibres were studied
